3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $x = [ 'US' => 'United States', 'GB' => 'United Kingdom', 'AF' => 'Afghanistan', 'AX' => 'Åland Islands', 'AL' => 'Albania', 'DZ' => 'Algeria', 'AS' => 'American Samoa', 'AD' => 'Andorra', 'AO' => 'Angola', 'AI' => 'Anguilla', 'AQ' => 'Antarctica', 'AG' => 'Antigua and Barbuda', 'AR' => 'Argentina', 'AM' => 'Armenia', 'AW' => 'Aruba', 'AU' => 'Australia', 'AT' => 'Austria', 'AZ' => 'Azerbaijan', 'BS' => 'Bahamas', 'BH' => 'Bahrain', 'BD' => 'Bangladesh', 'BB' => 'Barbados', 'BY' => 'Belarus', 'BE' => 'Belgium', 'BZ' => 'Belize', 'BJ' => 'Benin', 'BM' => 'Bermuda', 'BT' => 'Bhutan', 'BO' => 'Bolivia, Plurinational State of', 'BA' => 'Bosnia and Herzegovina', 'BW' => 'Botswana', 'BV' => 'Bouvet Island', 'BR' => 'Brazil', 'IO' => 'British Indian Ocean Territory', 'BN' => 'Brunei Darussalam', 'BG' => 'Bulgaria', 'BF' => 'Burkina Faso', 'BI' => 'Burundi', 'KH' => 'Cambodia', 'CM' => 'Cameroon', 'CA' => 'Canada', 'CV' => 'Cape Verde', 'KY' => 'Cayman Islands', 'CF' => 'Central African Republic', 'TD' => 'Chad', 'CL' => 'Chile', 'CN' => 'China', 'CX' => 'Christmas Island', 'CC' => 'Cocos (Keeling) Islands', 'CO' => 'Colombia', 'KM' => 'Comoros', 'CG' => 'Congo', 'CD' => 'Congo, the Democratic Republic of the', 'CK' => 'Cook Islands', 'CR' => 'Costa Rica', 'CI' => "Côte d'Ivoire", 'HR' => 'Croatia', 'CU' => 'Cuba', 'CY' => 'Cyprus', 'CZ' => 'Czech Republic', 'DK' => 'Denmark', 'DJ' => 'Djibouti', 'DM' => 'Dominica', 'DO' => 'Dominican Republic', 'EC' => 'Ecuador', 'EG' => 'Egypt', 'SV' => 'El Salvador', 'GQ' => 'Equatorial Guinea', 'ER' => 'Eritrea', 'EE' => 'Estonia', 'ET' => 'Ethiopia', 'FK' => 'Falkland Islands (Malvinas)', 'FO' => 'Faroe Islands', 'FJ' => 'Fiji', 'FI' => 'Finland', 'FR' => 'France', 'GF' => 'French Guiana', 'PF' => 'French Polynesia', 'TF' => 'French Southern Territories', 'GA' => 'Gabon', 'GM' => 'Gambia', 'GE' => 'Georgia', 'DE' => 'Germany', 'GH' => 'Ghana', 'GI' => 'Gibraltar', 'GR' => 'Greece', 'GL' => 'Greenland', 'GD' => 'Grenada', 'GP' => 'Guadeloupe', 'GU' => 'Guam', 'GT' => 'Guatemala', 'GG' => 'Guernsey', 'GN' => 'Guinea', 'GW' => 'Guinea-Bissau', 'GY' => 'Guyana', 'HT' => 'Haiti', 'HM' => 'Heard Island and McDonald Islands', 'VA' => 'Holy See (Vatican City State)', 'HN' => 'Honduras', 'HK' => 'Hong Kong', 'HU' => 'Hungary', 'IS' => 'Iceland', 'IN' => 'India', 'ID' => 'Indonesia', 'IR' => 'Iran, Islamic Republic of', 'IQ' => 'Iraq', 'IE' => 'Ireland', 'IM' => 'Isle of Man', 'IL' => 'Israel', 'IT' => 'Italy', 'JM' => 'Jamaica', 'JP' => 'Japan', 'JE' => 'Jersey', 'JO' => 'Jordan', 'KZ' => 'Kazakhstan', 'KE' => 'Kenya', 'KI' => 'Kiribati', 'KP' => "Korea, Democratic People's Republic of", 'KR' => 'Korea, Republic of', 'KW' => 'Kuwait', 'KG' => 'Kyrgyzstan', 'LA' => "Lao People's Democratic Republic", 'LV' => 'Latvia', 'LB' => 'Lebanon', 'LS' => 'Lesotho', 'LR' => 'Liberia', 'LY' => 'Libyan Arab Jamahiriya', 'LI' => 'Liechtenstein', 'LT' => 'Lithuania', 'LU' => 'Luxembourg', 'MO' => 'Macao', 'MK' => 'Macedonia, the former Yugoslav Republic of', 'MG' => 'Madagascar', 'MW' => 'Malawi', 'MY' => 'Malaysia', 'MV' => 'Maldives', 'ML' => 'Mali', 'MT' => 'Malta', 'MH' => 'Marshall Islands', 'MQ' => 'Martinique', 'MR' => 'Mauritania', 'MU' => 'Mauritius', 'YT' => 'Mayotte', 'MX' => 'Mexico', 'FM' => 'Micronesia, Federated States of', 'MD' => 'Moldova, Republic of', 'MC' => 'Monaco', 'MN' => 'Mongolia', 'ME' => 'Montenegro', 'MS' => 'Montserrat', 'MA' => 'Morocco', 'MZ' => 'Mozambique', 'MM' => 'Myanmar', 'NA' => 'Namibia', 'NR' => 'Nauru', 'NP' => 'Nepal', 'NL' => 'Netherlands', 'AN' => 'Netherlands Antilles', 'NC' => 'New Caledonia', 'NZ' => 'New Zealand', 'NI' => 'Nicaragua', 'NE' => 'Niger', 'NG' => 'Nigeria', 'NU' => 'Niue', 'NF' => 'Norfolk Island', 'MP' => 'Northern Mariana Islands', 'NO' => 'Norway', 'OM' => 'Oman', 'PK' => 'Pakistan', 'PW' => 'Palau', 'PS' => 'Palestinian Territory, Occupied', 'PA' => 'Panama', 'PG' => 'Papua New Guinea', 'PY' => 'Paraguay', 'PE' => 'Peru', 'PH' => 'Philippines', 'PN' => 'Pitcairn', 'PL' => 'Poland', 'PT' => 'Portugal', 'PR' => 'Puerto Rico', 'QA' => 'Qatar', 'RE' => 'Réunion', 'RO' => 'Romania', 'RU' => 'Russian Federation', 'RW' => 'Rwanda', 'BL' => 'Saint Barthélemy', 'SH' => 'Saint Helena', 'KN' => 'Saint Kitts and Nevis', 'LC' => 'Saint Lucia', 'MF' => 'Saint Martin (French part)', 'PM' => 'Saint Pierre and Miquelon', 'VC' => 'Saint Vincent and the Grenadines', 'WS' => 'Samoa', 'SM' => 'San Marino', 'ST' => 'Sao Tome and Principe', 'SA' => 'Saudi Arabia', 'SN' => 'Senegal', 'RS' => 'Serbia', 'SC' => 'Seychelles', 'SL' => 'Sierra Leone', 'SG' => 'Singapore', 'SK' => 'Slovakia', 'SI' => 'Slovenia', 'SB' => 'Solomon Islands', 'SO' => 'Somalia', 'ZA' => 'South Africa', 'GS' => 'South Georgia and the South Sandwich Islands', 'ES' => 'Spain', 'LK' => 'Sri Lanka', 'SD' => 'Sudan', 'SR' => 'Suriname', 'SJ' => 'Svalbard and Jan Mayen', 'SZ' => 'Swaziland', 'SE' => 'Sweden', 'CH' => 'Switzerland', 'SY' => 'Syrian Arab Republic', 'TW' => 'Taiwan, Province of China', 'TJ' => 'Tajikistan', 'TZ' => 'Tanzania, United Republic of', 'TH' => 'Thailand', 'TL' => 'Timor-Leste', 'TG' => 'Togo', 'TK' => 'Tokelau', 'TO' => 'Tonga', 'TT' => 'Trinidad and Tobago', 'TN' => 'Tunisia', 'TR' => 'Turkey', 'TM' => 'Turkmenistan', 'TC' => 'Turks and Caicos Islands', 'TV' => 'Tuvalu', 'UG' => 'Uganda', 'UA' => 'Ukraine', 'AE' => 'United Arab Emirates', 'UM' => 'United States Minor Outlying Islands', 'UY' => 'Uruguay', 'UZ' => 'Uzbekistan', 'VU' => 'Vanuatu', 'VE' => 'Venezuela, Bolivarian Republic of', 'VN' => 'Viet Nam', 'VG' => 'Virgin Islands, British', 'VI' => 'Virgin Islands, U.S.', 'WF' => 'Wallis and Futuna', 'EH' => 'Western Sahara', 'YE' => 'Yemen', 'ZM' => 'Zambia', 'ZW' => 'Zimbabwe' ]; echo json_encode($x);
Output for 5.4.0 - 7.2.0
{"US":"United States","GB":"United Kingdom","AF":"Afghanistan","AX":"\u00c5land Islands","AL":"Albania","DZ":"Algeria","AS":"American Samoa","AD":"Andorra","AO":"Angola","AI":"Anguilla","AQ":"Antarctica","AG":"Antigua and Barbuda","AR":"Argentina","AM":"Armenia","AW":"Aruba","AU":"Australia","AT":"Austria","AZ":"Azerbaijan","BS":"Bahamas","BH":"Bahrain","BD":"Bangladesh","BB":"Barbados","BY":"Belarus","BE":"Belgium","BZ":"Belize","BJ":"Benin","BM":"Bermuda","BT":"Bhutan","BO":"Bolivia, Plurinational State of","BA":"Bosnia and Herzegovina","BW":"Botswana","BV":"Bouvet Island","BR":"Brazil","IO":"British Indian Ocean Territory","BN":"Brunei Darussalam","BG":"Bulgaria","BF":"Burkina Faso","BI":"Burundi","KH":"Cambodia","CM":"Cameroon","CA":"Canada","CV":"Cape Verde","KY":"Cayman Islands","CF":"Central African Republic","TD":"Chad","CL":"Chile","CN":"China","CX":"Christmas Island","CC":"Cocos (Keeling) Islands","CO":"Colombia","KM":"Comoros","CG":"Congo","CD":"Congo, the Democratic Republic of the","CK":"Cook Islands","CR":"Costa Rica","CI":"C\u00f4te d'Ivoire","HR":"Croatia","CU":"Cuba","CY":"Cyprus","CZ":"Czech Republic","DK":"Denmark","DJ":"Djibouti","DM":"Dominica","DO":"Dominican Republic","EC":"Ecuador","EG":"Egypt","SV":"El Salvador","GQ":"Equatorial Guinea","ER":"Eritrea","EE":"Estonia","ET":"Ethiopia","FK":"Falkland Islands (Malvinas)","FO":"Faroe Islands","FJ":"Fiji","FI":"Finland","FR":"France","GF":"French Guiana","PF":"French Polynesia","TF":"French Southern Territories","GA":"Gabon","GM":"Gambia","GE":"Georgia","DE":"Germany","GH":"Ghana","GI":"Gibraltar","GR":"Greece","GL":"Greenland","GD":"Grenada","GP":"Guadeloupe","GU":"Guam","GT":"Guatemala","GG":"Guernsey","GN":"Guinea","GW":"Guinea-Bissau","GY":"Guyana","HT":"Haiti","HM":"Heard Island and McDonald Islands","VA":"Holy See (Vatican City State)","HN":"Honduras","HK":"Hong Kong","HU":"Hungary","IS":"Iceland","IN":"India","ID":"Indonesia","IR":"Iran, Islamic Republic of","IQ":"Iraq","IE":"Ireland","IM":"Isle of Man","IL":"Israel","IT":"Italy","JM":"Jamaica","JP":"Japan","JE":"Jersey","JO":"Jordan","KZ":"Kazakhstan","KE":"Kenya","KI":"Kiribati","KP":"Korea, Democratic People's Republic of","KR":"Korea, Republic of","KW":"Kuwait","KG":"Kyrgyzstan","LA":"Lao People's Democratic Republic","LV":"Latvia","LB":"Lebanon","LS":"Lesotho","LR":"Liberia","LY":"Libyan Arab Jamahiriya","LI":"Liechtenstein","LT":"Lithuania","LU":"Luxembourg","MO":"Macao","MK":"Macedonia, the former Yugoslav Republic of","MG":"Madagascar","MW":"Malawi","MY":"Malaysia","MV":"Maldives","ML":"Mali","MT":"Malta","MH":"Marshall Islands","MQ":"Martinique","MR":"Mauritania","MU":"Mauritius","YT":"Mayotte","MX":"Mexico","FM":"Micronesia, Federated States of","MD":"Moldova, Republic of","MC":"Monaco","MN":"Mongolia","ME":"Montenegro","MS":"Montserrat","MA":"Morocco","MZ":"Mozambique","MM":"Myanmar","NA":"Namibia","NR":"Nauru","NP":"Nepal","NL":"Netherlands","AN":"Netherlands Antilles","NC":"New Caledonia","NZ":"New Zealand","NI":"Nicaragua","NE":"Niger","NG":"Nigeria","NU":"Niue","NF":"Norfolk Island","MP":"Northern Mariana Islands","NO":"Norway","OM":"Oman","PK":"Pakistan","PW":"Palau","PS":"Palestinian Territory, Occupied","PA":"Panama","PG":"Papua New Guinea","PY":"Paraguay","PE":"Peru","PH":"Philippines","PN":"Pitcairn","PL":"Poland","PT":"Portugal","PR":"Puerto Rico","QA":"Qatar","RE":"R\u00e9union","RO":"Romania","RU":"Russian Federation","RW":"Rwanda","BL":"Saint Barth\u00e9lemy","SH":"Saint Helena","KN":"Saint Kitts and Nevis","LC":"Saint Lucia","MF":"Saint Martin (French part)","PM":"Saint Pierre and Miquelon","VC":"Saint Vincent and the Grenadines","WS":"Samoa","SM":"San Marino","ST":"Sao Tome and Principe","SA":"Saudi Arabia","SN":"Senegal","RS":"Serbia","SC":"Seychelles","SL":"Sierra Leone","SG":"Singapore","SK":"Slovakia","SI":"Slovenia","SB":"Solomon Islands","SO":"Somalia","ZA":"South Africa","GS":"South Georgia and the South Sandwich Islands","ES":"Spain","LK":"Sri Lanka","SD":"Sudan","SR":"Suriname","SJ":"Svalbard and Jan Mayen","SZ":"Swaziland","SE":"Sweden","CH":"Switzerland","SY":"Syrian Arab Republic","TW":"Taiwan, Province of China","TJ":"Tajikistan","TZ":"Tanzania, United Republic of","TH":"Thailand","TL":"Timor-Leste","TG":"Togo","TK":"Tokelau","TO":"Tonga","TT":"Trinidad and Tobago","TN":"Tunisia","TR":"Turkey","TM":"Turkmenistan","TC":"Turks and Caicos Islands","TV":"Tuvalu","UG":"Uganda","UA":"Ukraine","AE":"United Arab Emirates","UM":"United States Minor Outlying Islands","UY":"Uruguay","UZ":"Uzbekistan","VU":"Vanuatu","VE":"Venezuela, Bolivarian Republic of","VN":"Viet Nam","VG":"Virgin Islands, British","VI":"Virgin Islands, U.S.","WF":"Wallis and Futuna","EH":"Western Sahara","YE":"Yemen","ZM":"Zambia","ZW":"Zimbabwe"}
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/dXTNU on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/dXTNU on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/dXTNU on line 3
Process exited with code 255.